66.18% is the change from 343 to 570
Calculation steps:
[( 570 - 343 ) ÷ 343] x 100 = 66.18%
Formula
Percentage change = [(570 - 343) / 343] x 100
Subtract the new number by the original number
570 - 343 = 227
227 ÷ 343 = 0.6618075801749271
0.6618075801749271 x 100 = 66.18%